Question

q 12. how many protons and neutrons are in one atom of ( ce{^{30}_{14}si} )?
options:

• 14 protons and 16 neutrons
• 16 protons and 16 neutrons
• 16 protons and 14 neutrons
• 14 protons and 14 neutrons

clear all

Explanation:

Step1: Determine number of protons

The atomic number (subscript) of Si is 14. The number of protons in an atom is equal to its atomic number. So, number of protons = 14.

Step2: Determine number of neutrons

The mass number (superscript) is 30. Number of neutrons = mass number - atomic number. So, neutrons = \( 30 - 14 = 16 \).

Answer:

14 protons and 16 neutrons (corresponding to the first option: 14 protons and 16 neutrons)